@Override
public void mouseMoved(final MouseEvent e) {
if (coords.size() > 2) {
if (justCreated) {
coords.remove(coords.size() - 1);
coords.remove(coords.size() - 1);
coords.add(helper.toCoord(e.getX(), e.getY()));
coords.add(helper.toCoord(e.getX(), e.getY()));
} else {
coords.remove(coords.size() - 1);
coords.add(helper.toCoord(e.getX(), e.getY()));
}
erase = EditionHelper.createPolygon(coords);
final Geometry line = EditionHelper.createLinearRing(coords);
geometry =
(multipolygon) ? EditionHelper.createMultiPolygon(subGeometries) : subGeometries.get(0);
try {
geometry = geometry.difference(erase);
} catch (TopologyException ex) {
LOGGER.log(Level.INFO, ex.getLocalizedMessage());
}
decoration.setGeometries(UnmodifiableArrayList.wrap(new Geometry[] {geometry, line}));
return;
}
super.mouseMoved(e);
}
@Override
public void mouseClicked(final MouseEvent e) {
final int button = e.getButton();
if (button == MouseEvent.BUTTON1) {
if (geometry == null) {
setCurrentFeature(helper.grabFeature(e.getX(), e.getY(), false));
} else {
if (justCreated) {
justCreated = false;
// we must modify the second point since two point where added at the start
coords.remove(2);
coords.remove(1);
coords.add(helper.toCoord(e.getX(), e.getY()));
coords.add(helper.toCoord(e.getX(), e.getY()));
} else if (coords.isEmpty()) {
justCreated = true;
// this is the first point of the geometry we create
// add 3 points that will be used when moving the mouse around
coords.add(helper.toCoord(e.getX(), e.getY()));
coords.add(helper.toCoord(e.getX(), e.getY()));
coords.add(helper.toCoord(e.getX(), e.getY()));
} else {
justCreated = false;
coords.add(helper.toCoord(e.getX(), e.getY()));
}
erase = EditionHelper.createPolygon(coords);
final Geometry line = EditionHelper.createLinearRing(coords);
geometry =
(multipolygon) ? EditionHelper.createMultiPolygon(subGeometries) : subGeometries.get(0);
try {
geometry = geometry.difference(erase);
} catch (TopologyException ex) {
LOGGER.log(Level.INFO, ex.getLocalizedMessage());
}
decoration.setGeometries(UnmodifiableArrayList.wrap(new Geometry[] {geometry, line}));
}
} else if (button == MouseEvent.BUTTON3 && feature != null) {
// finish editing the feature
helper.sourceModifyFeature(feature, geometry, true);
reset();
}
}
private boolean evaluateFeature(SimpleFeature feature) {
try {
return getFilter().evaluate(feature);
} catch (TopologyException e) {
if (!warned) {
warned = true;
Log.warning(
Geonet.SPATIAL, e.getMessage() + " errors are occuring with filter: " + getFilter());
}
if (Log.isDebugEnabled(Geonet.SPATIAL))
Log.debug(
Geonet.SPATIAL,
e.getMessage()
+ ": occurred during a search: "
+ getFilter()
+ " on feature: "
+ feature.getDefaultGeometry());
return false;
}
}
/**
* Set the bbox for this expression
*
* @param env The envelope to set as the bounds.
* @throws IllegalFilterException If the box can not be created.
* @task HACK: currently sets the SRID to null, which can cause problems with JTS when it comes to
* doing spatial tests
*/
public final void setBounds(Envelope env) throws IllegalFilterException {
Coordinate[] coords = new Coordinate[5];
coords[0] = new Coordinate(env.getMinX(), env.getMinY());
coords[1] = new Coordinate(env.getMinX(), env.getMaxY());
coords[2] = new Coordinate(env.getMaxX(), env.getMaxY());
coords[3] = new Coordinate(env.getMaxX(), env.getMinY());
coords[4] = new Coordinate(env.getMinX(), env.getMinY());
LinearRing ring = null;
try {
ring = gfac.createLinearRing(coords);
} catch (TopologyException tex) {
throw new IllegalFilterException(tex.toString());
}
Polygon polygon = gfac.createPolygon(ring, null);
if (env instanceof ReferencedEnvelope) {
ReferencedEnvelope refEnv = (ReferencedEnvelope) env;
polygon.setUserData(refEnv.getCoordinateReferenceSystem());
}
super.setValue(polygon);
}